International Monetary Fund chief Christine Lagarde urged the Group of 20 major economies to fulfil their pledges to revive the faltering global economy.

Ahead of next week's G20 finance chiefs meeting in Istanbul, the IMF managing director said they needed to implement the G20 leaders' commitments made at the November summit in Brisbane to boost growth, adding more than 2 trillion dollars to the global economy and millions of jobs over the next four years.